PEB2085 SIEMENS [Siemens Semiconductor Group], PEB2085 Datasheet - Page 129

• Manufacturer Part Number: PEB2085
• Description: ISDN SubscribernAccess Controller
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Further Criteria Leading to a Re-Establishment
Q.921 § 5.7.1: Criteria for Re-Establishment
§ 5.7.1 Criteria for re-establishment
The criteria for re-establishing the multiple frame mode of operation are defined in this section
by the following conditions:
Reaction of the ISAC-S
Necessary Software Reactions
The same actions as in section 3 have to be taken. In addition, in case of a) the necessary
discrimination for the software is possible by reading STAR2: WFA while still in auto-mode. If
WFA = 1 then V(S) > V(A); if WFA = 0, then V(S) = V(A).
Semiconductor Group
a) The receipt while in the multiple frame mode of operation, of an SABME;
b) The receipt of a DL-ESTABLISH-REQUEST primitive from layer 3 (see § 5.5.1.1);
c) The occurrence of N200 re-transmission failures while in the timer recovery condition
d) The occurrence of a frame rejection condition as identified in § 5.8.5;
e) On the receipt, while in the multiple frame mode of operation of an FRMR response frame
f) The receipt, while in the multiple frame mode of operation, of an unsolicited DM response
g) The receipt while in the timer recovery condition, of a DM response with the F bit set to 1.
a) after having checked for validity and non-occurrence of a frame rejection condition, the
b) –
c) A TIN-Interrupt occurs (of course MODE: TMD has to have been 1)
d) see section 3
e) see a)
f) see a)
g) see a).
(see § 5.6.7)
(see § 5.8.6);
with the F bit set to O (see § 5.8.7);
error free SABME can be identified after RME-Interrupt by reading the RHCR-register; the
multiple frame est/timer recovery discrimination can be done by reading STAR2: TREC
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Functional Description